diff --git a/go.mod b/go.mod
index 922effd..228b377 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module go.osspkg.com/syncing
 
 go 1.24.0
 
-require go.osspkg.com/casecheck v0.3.0
+require go.osspkg.com/casecheck v0.3.1
diff --git a/go.sum b/go.sum
index 178b450..6bc61db 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-go.osspkg.com/casecheck v0.3.0 h1:x15blEszElbrHrEH5H02JIIhGIg/lGZzIt1kQlD3pwM=
-go.osspkg.com/casecheck v0.3.0/go.mod h1:TRFXDMFJEOtnlp3ET2Hix3osbxwPWhvaiT/HfD3+gBA=
+go.osspkg.com/casecheck v0.3.1 h1:mxg1WaWy/tv7J05jvf5Idy3ydDYbac3gOOV9NPdjxvU=
+go.osspkg.com/casecheck v0.3.1/go.mod h1:TRFXDMFJEOtnlp3ET2Hix3osbxwPWhvaiT/HfD3+gBA=